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Finding the Fourth Proportional to 89,965, 124,162.64 and 52,239.25

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Solution

The fourth proportional to 89,965, 124,162.64 and 52,239.25 is: 72,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965 : 124,162.64 = 52,239.25 : x
  2. Step 2: Convert to fraction form
    89,965/124,162.64 = 52,239.25/x
  3. Step 3: Cross multiply
    89,965x = 124,162.64 × 52,239.25
  4. Step 4: Simplify right side
    89,965x = 6,486,163,191.62
  5. Step 5: Solve for x
    x = 6,486,163,191.62/89,965
  6. Step 6: Final answer
    x = 72,096.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.